[The Epoch Times, 23 Ògmhios, 2024](Reported by Epoch Occasions reporter Chen Juncun) The Hubble House Telescope of the Nationwide Aeronautics and House Administration (NASA) captured a picture of the RCW 7 nebula, which reveals a exceptional assortment of interstellar fuel and mud, the place stars younger born.
NASA famous in a June 21 press launch that RCW 7 is positioned within the constellation Puppis, simply 5,300 light-years away from Earth. The protostar fashioned on this nebula may be very massive and emits robust ionizing radiation and violent winds, remodeling the nebula right into a hydrogen ion (H II) area.
Nebulae are areas wealthy within the uncooked supplies wanted to create new stars, star factories. Beneath the affect of gravity, a few of these molecular clouds will collapse till they merge to develop younger stars, known as protostars. The protostar continues to be surrounded by a rotating disk of remnant fuel and mud.
The hydrogen ion zone is full of hydrogen ions. The hydrogen ion known as hydrogen that has misplaced electrons and develop into ions. Ultraviolet mild from the large protostar excites the hydrogen within the nebula, inflicting it to emit mild, inflicting the nebula to glow tender and pink.
The Hubble House Telescope knowledge on this picture comes from a earlier examine. The examine aimed to review an especially large protostellar binary system known as IRAS 07299-1651. IRAS 07299-1651 stays in a cocoon of glowing fuel throughout the curl cloud on the prime of the picture.
The RCW 7 nebula captured by NASA’s Hubble House Telescope. (ESA/Hubble & NASA)
To disclose the star and its siblings, astronomers used the Hubble House Telescope’s Huge Subject Digicam 3 in near-infrared mild.
The enormous protostars on this picture shine brightest in ultraviolet mild, however additionally they emit a number of infrared mild. The longer wavelength of infrared mild permits it to cross by many of the fuel and mud within the cloud, permitting the Hubble House Telescope to seize it. Lots of the bigger stars within the picture are foreground stars and don’t belong to the nebula. These stars are literally positioned between the nebula and the photo voltaic system.
The formation of hydrogen ion areas marks the start of the tip of molecular clouds like RCW 7. Over just some million years, radiation and winds from large stars regularly disperse the fuel. The state of affairs is much more harmful when probably the most large stars attain the tip of their lives in supernova explosions.
The brand new stars on this nebula will solely take up a small a part of the nebula’s fuel, and the remainder of the fuel will unfold all through the galaxy, finally creating new molecular clouds.
Editor-in-Chief: Li Tianqi #
